She read the letter through before sending it, for spelling mistakes.A. checked B. to be

发布时间：2020-08-14 23:28:07

She read the letter through before sending it,      for spelling mistakes.
A. checked
B. to be checking
C. checking
D. having checked

网友回答

A. checked
B. to be checking
(答案→)C. checking
D. having checked
解析：现在分词短语在此表示伴随。
以上问题属网友观点，不代表本站立场，仅供参考！